amy

Massachusetts Institute of Technology scientists have developed a new battery materials, processing technology, can be used to create smaller rechargeable Sony laptop battery, its charge-discharge rate is expected to be reduced to minutes or even seconds, rather than hours.



Li-ion battery is a small mobile phones and other electronic devices, one of the most commonly used power, they have a very high energy density, very good at storing energy, drawback is that charge and discharge slowly.



Scientists generally believe that, resulting in slow Li-ion battery charge and discharge the reason is responsible for carrying charge lithium-ion sony PCGA-BP1N battery,sony PCGA-BP2E battery materials through the movement is too slow. However, scientists at Massachusetts Institute of Technology discovered a few years ago, according to computer model forecasts, common battery materials, lithium iron phosphate in lithium-ion velocity should be very fast.



After further calculations, they found that lithium-ion only through the channels on the surface of this material quickly into the material, that do not directly face the difficult passage into the material of lithium ion inside, because they can not exercise to the channel entrance.



Massachusetts Institute of Technology research team in the battery of this surface to create a new type of structure, so that lithium-ion movement in the surface quickly, just like an automobile along the "ring road" to high speed. Movement encountered a lithium-ion channels, they will immediately enter the cell materials.



They used this technique to create a piece of the battery, its charge and discharge rate of only 10 seconds to 20 seconds, compared with untreated material of the battery needs 6 minutes to fully charge and discharge. In addition, the use of new technology made the battery charge and discharge in the case of repeated failure slower.



Scientists say the technology could greatly reduce the cell phone and laptop sony VGP-BPS2A battery,sony VGP-BPS2B battery,sony VGP-BPS2C battery charging time can be used to create a better acceleration performance electric vehicles. Will be held March 12 issue of the British "Nature" magazine will be published in the paper.